While oil analysis is a well-established part of a condition based monitoring program, the inherent difficulties involved with in-service grease sampling and analysis have long prevented the integration of grease analysis into most CBM programs. Due to this oversight, a sizeable percentage of highly critical machines receive no lubricant analysis and are therefore missing significant reliability data. Wind turbines are especially vulnerable to this omission due to the number of highly critical components that are grease lubricated on each turbine. The main bearing, generator bearings, pitch and yaw bearings are all grease lubricated and are traditionally not subject to lubricant analysis, leaving them vulnerable to undetected wear conditions. Recent advances in grease sampling and analysis techniques are leading to an expansion in grease monitoring in wind turbines. This paper will discuss recent grease analysis findings in wind turbine main and pitch bearings utilizing new sampling and analysis techniques outlined in ASTM D7718, D7918 and AWEA RP 812-815.